Using SignalR with ElastiCache fails
Solution 1:
In this case client is important and Baking your own SignalR definitly bad practice. Did you check this page http://www.asp.net/signalr/overview/performance/scaleout-with-redis: This method uses StackExchange.Redis(StrongName) and StackExchange.Redis has many options for connection.
We are using same method described in the page on AWS with Elasticache Redis and we don't have any issues you had...
Regards...